Steam-trap.



` b G Q Q Q Q C. A. NUNEZ.

STEAMTRAP. Y APPLICATION FILED APR. I3 1'9l4- RENEWED MAY 12,1915- 3SHEETS-SHEET I.

THE NORR/s PETERS co.. PHOTO-urna. WASHINGTON. D. C.

o. A. ANUNEZ.

STEAM TRAP. v APPLICATION FILED APR.13,1914. RENEWED MAY I2, |915.

A., Patented June 15, 1915.

3 SHEETS-SHEET 2.

THE NORRIS PETERS C0.. PHoTv-LITHO.. WASHINGTON, D. C,

c. A. NUNEZ.

STEAM TRAP.

APPLICATION FILED APR. I3, 1914. RENEWED MAY I2 1915. Lmmm Patemd Jun@15J `1915.

" 3 SHEETS-SHEET 3.

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CRESCENCIO ALFONSO NUNEZ, OF CRUCES, CUBA.

STEAM-TRAP.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed April 13, 1914, Serial No. 831,525. Renewed May 12,1915. Serial No. 217,665.

T0 all whom it may concern j Be it known that I, CREsonNoIo ALFONSONUNEZ, a citizen of the Republic of Cuba, and resident of Cruces,Province of Santa Clara, Cuba, have invented new and useful Improvementsin Steam-Traps, of which the following is a specification.

This invention relates to steam traps.

It is 4an object of the invention to provide a trap wherein thecondensate from the steam is collected until a suitable amount is withinthe trap whereupon the trap is automatically opened to discharge thiscondensate.

Another object of the invention is to provide a device of this kindwherein the condensate is readily discharged and wherein no obstructionsare placed in the path of the same.

Another object of the device is to provide a steam trap, wherein thedischarge opening for the condensate is controlled by a sliding valve.

Other objects will be more clearly understood by reference to theaccompanying drawing` and additional features will be more clearlypointed out in the appended claims. v

In the drawing, Figure 1 is a top plan view of the trap. Fig. 2 is afront elevation of the same. Fig. 3 is a side elevation of the trap.Fig. 4 is a vertical section through the same on the line 4 4 of Fig. l,showing the trap and the members thereof in the position in which thedischarge of the condensa-te is obstructed. Fig. 5 is a transversesection in a vertical plane on line 5-5 of Fig. 1. Fig. 6 is a sectionsimilar to the section shown in Fig. 4 and illustrating the parts in adifferent position, the discharge aperture for the condensate beingpartly open, and Fig. 7 is a horizontal section through the trap.

Similar parts are indicated by similar reference characters throughoutthe drawings.

The trap comprises -a casing 1 which is closed on all sides and which isdivided into two chambers 1 and 1 respectively, said chambers being incommunication with each other. r1he larger chamber 1 serves as areceptacle for a float 2, while the smaller chamber 1 holds a slidingvalve 3, which controls the discharge aperture for the condensate. Aflange 4 connected with the upa perV marginal portion of the chamber lserves ias a seat for the cover 7, which is connected with said lflangeby means of bolts 5 and nuts 6. The open end of the other chamber l isalso closed by means of a cover 12 which'rests on the flange 9 of thechamber, the connection between flange and cover being effected by meansof bolts 10 and nuts 11. As may be seen from Figs. 2 and 3 the smallerchamber l has a fiat top wall 8 from whichv projects centrally a hollowridge 8 extending from the forward end of the chamber l in slantingdirection upwardlytoward the forward end of the chamber l. The fioat 2in the chamber l preferably is constructed in the form of a hollow balland is secured to or formed integral with apipe 13 extending from thelower portion of said ball and terminating in an enlarged nipple 13which is provided with an internal thread. Another pipe 14 is connectedwith the nipple by being threaded therein and is attached to a pipe 15in axial alinement therewith by means of flanged disks 16 and 17, whichare secured to the abutting ends of the pipes 14 and 15 and which areheld together by means of bolts 18. An elbow 19 is secured to theforward end of the pipe 15 and the bore in said elbow communicates withthe bore in the pipes 14 and 15V. A transverse portion attached to theupper end of the elbow forms a bearing sleeve 20, which is pivoted upona transverse shaft 21, said shaft being secured'in uprights 22, parallelto the lateral walls 23 ofthe smaller chamber l. Foot portions 24 of theuprights 22 are secured to a flange 25, which rests on a boss 26projecting upwardly from the bottom 27 of the chamber l, the uprightsbeing secured to the flange 25 by means vof the screws 26, as clearlyshownin Fig. 5. The bottom wall 27 of the chamber 1 has a suitableaperture 28 in which a discharge yspud 29 in integral connection withthe flange 25 is inserted. This spud preferably is provided withinternal thread 29 to facilitate connection with a discharge pipe.

The shaft 21 which serves as pivot for the bearing 20 and elbow 19 isextended laterally and projects through one wall 23 of the chamber 1. Apacking disk 30 is mounted on the projecting end of the shaft and issecurd to the wall of the chamber by, means of screws 3l, This disk isin connection with a threaded plug, which maintains the disk in 'centralrelation with respect to the shaft 21.

The uprights 22 .are provided near their lower ends with grooves intowhich the side flanges 32 of the valve, shown in Fig. 5, project andwhereby said valve is guided in its sliding movement over the dischargeopening 33 in the flange 25 connected with the spud 29. The valve plate3 is equipped adjacent each of the uprights 22 with a pair of projectinglugsl 34. A lug 36 secured to the bearing sleeve 20 projects downwardlytherefrom into the gap between each pair of lugs 34 ofthe valve plate,whereby an oscillation of said bearing l sleeve will cause slidingmovement of the valve plate 3. A bore 37 axially disposed in the shaft.21 communicates with a bore 38 which terminates in the elbow 19 wherebythe contents of the float 2 may be brought into Vcommunication with theatmospheric air. It is obvious, therefore, that an ascending ordescending movement of the float 2 will swing the pipe connections 13,14'and 15 about the axis of the shaft 21 and willproduce thereby asliding movementof the valve plate 3.

In order to provide means for preventing a-lateral displacement of thefloat within the chamber'l guidingstraps 37 are secured to the lateralwalls 38 of the chamber 1 by means of bolts 39, said bolts extendingthrough offset portions 40 of the straps, as shown in Fig. 2.* FromFigs. 4 and 6 it is obvious that these straps although being arranged inplanes parallel to the walls 38 of the chamber extend at a slant fromtheir upper end to their lower`point of attachment whereby the float 2in .its swinging movement about shaft 21 will remain between saidstraps.

Adjustable counterbalancing means are provided for facilitating theascending movement of the float within the chamber 1, said meanscomprising a pair 'of rods 41 pivotally secured within the chamber 1bymeans of a shaft 42, extending transversely through said chamber andprojecting at lone side therefrom; the projecting end of the shaft 42carries a stuffing box 43 and is rigidly connected withfa lever 44 onwhich a counterweight 45 is adjustably mounted. The weight 45 maybe heldin adjusted position onthe lever'44 by means of a set-screw 46, Fig.v 3.The rods 41 extending forwardly from the shaft 42 are united at theirforward end to form a bail-shaped member, the central portion of thebail carrying an antifriction roller 47, which is yin engagement withthe lowerside of the extension 13 connected with the float.

The steam enters the trap through an aperture 48 in the chamber1","vsaid aperture being on the outside of the trap provided with apipenut 49 adapted to receive a connecting pipe and the connection beingmade by means of a flange 50, which is secured to the walls of thechamber by screws 5l.

The operation of the device is as follows: Steam containing an excessiveamount of moisture enters through the aperture 4S into the trap and themoisture is condensed primarily within the chamber l. In proportion tothe increase of the condensate within the trap the float 2 will assume ahigher level, a movement in which it is aided on account of theprovision of the counterweight 45. rlhe movement of the float takesplace in an arcuate path, the center of which is the shaft 21 adjacentthe valve 3 which controls the discharge opening 33. Due to the lugs 36which engage between the lugs. 34 on the valve, the valve plate 3 isdisplaced in horizontal direction on the flange 25 of the spud 29 andwhen said valve has been shifted so as to open the aperture 33, thecondensate from the trap will be discharged through the spud 29. Thedischarge of the condensate from the chamber 1 will lower the level ofthe condensate within the casing and the float 2 therefore, willdescend. This movement of the float causes a sliding movement of thevalve plate 3 in opposite direction to the first described movement sothat said valve closes the aperture 33. It will be noted that the float2 when in this lifted position is at a higher level than the bore 37 inthe shaft 21 and any moisture which may have entered said float at thepipe joints or at other portions will be discharged by gravity throughthe pipe connections 13, 14 and 15 and through the elbow 19 so that theweight of the movable structure is not disturbed thereby.

It is thought that this invention and many of its advantages will beunderstood from the foregoing without further description, and it isobvious that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention, or sacrificing any of its advantages, the formhereinbefore disclosed being merely one preferred embodiment thereof.

I claim:

1. In a steam trap, the combination of a closed chamber adapted toreceive condensate and having a discharge port, a. valve normallyclosing said port and movable to open the same, a lioat within thechamber adapted to move in an arc of a circle under the influence of thecondensate, connections between the valve and the float whereby themovements of the float control those of the valve, said connectionsbetween the float and the valve including a stem, and counterbalancingmeans for the float including a shaft j ournaled in the walls of thechamber transversely thereof adjacent the float, a bail shaped membersecured to the shaft, antil friction means between the portion of thebail shaped member remote from the shaft and said float stem, and aweighted crank secured to the shaft on the outside of the chamber.

2. In a steam trap, the combination of a closed chamber having an inletfor condensate and a discharge port, a valve movversely of and in thechamber below the float and on the opposite side thereof from the valve,a bail comprising two arms on opposite sides of the float connected tothe shaft, an antifriction roller carried by the bail remote from theshaft and bearing against the underside of said stem, and a weightedlever secured to the shaft on the outside of the chamber and on theopposite side of the vertical plane of the shaft from said bail. i

In testimony whereof I have hereunto set my hand and affixed my seal inthe presence of the two subscribing witnesses.

GRESCENCIO ALFONS() NUNEZ. [L- 8.] Witnesses:

JULIAN GONZALES, MAX BoNAM.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, '.D. C. v

